Strangely, these unused 3D models appear in the code for Mega Man Battle Network 5 for the DS—strangely because MMBN5 is a 2D game. Anyway, there’s a 7-Eleven (which seems a bit out of place in the Mega Man universe) and a bunch of soda machines. [Source]

Mega Man pauses to consider a soda machine in the Mega Man Legends/Rockman DASH beta. Apparently, it was distributed as a demo to members of the Capcom Friendly Club in August 1997. Capcom ultimately went with a different design for the final release.